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Wrecked X
If you use Motif or another X Window variant, now and then you may find your screen in a most peculiar state, one in which you can move the mouse pointer around, but none of the windows changes, and you can’t type anything in any windows. Often you can fix this problem by restarting the window manager, which is the program that controls which window gets what.Move the mouse pointer outside any window and click and hold the left or right mouse button (which one depends on which window manager you’re using) to display the window manager menu. That menu should have a Restart mwm or Restart fvwm item. Choose that option. The borders around all your windows disappear (the window manager handles the borders), and after a few seconds, they reappear. With luck, everything is fixed. If there’s no way to restart the window manager, see if you can log out from the window system and log back in.
